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Finding the Fourth Proportional to 343,739.59, 474,353.49 and 190,768.89

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Solution

The fourth proportional to 343,739.59, 474,353.49 and 190,768.89 is: 263,257.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,739.59 : 474,353.49 = 190,768.89 : x
  2. Step 2: Convert to fraction form
    343,739.59/474,353.49 = 190,768.89/x
  3. Step 3: Cross multiply
    343,739.59x = 474,353.49 × 190,768.89
  4. Step 4: Simplify right side
    343,739.59x = 90,491,888,754.93
  5. Step 5: Solve for x
    x = 90,491,888,754.93/343,739.59
  6. Step 6: Final answer
    x = 263,257.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.